<template>
    <div class="wrapper">
      <!-- header部分 -->
      <header>
        <p>用户登陆</p>
      </header>
  
      <!-- 表单部分 -->
      <ul class="form-box">
        <li>
          <div class="title">手机号码：</div>
          <div class="content">
            <input type="text" v-model="userId" placeholder="手机号码" />
          </div>
        </li>
        <li>
          <div class="title">密码：</div>
          <div class="content">
            <input type="password" v-model="password" placeholder="密码" />
          </div>
        </li>
      </ul>
  
      <div class="button-login">
        <button @click="login">登陆</button>
      </div>
      <div class="button-register">
        <button @click="register">去注册</button>
      </div>
  
      <!-- 底部菜单部分 -->
      <Footer></Footer>
    </div>
  </template>
  
  <script setup>
  import Footer from "../components/Footer.vue";
  import qs from "qs";
  import { useRouter } from "vue-router";
  import { ref, inject } from "vue";
  import { setSessionStorage } from "../common.js";
  
  const axios = inject("axios");
  const router = useRouter();
  
  const userId = ref("");
  const password = ref("");
  
  const login = () => {
    if (userId.value == "") {
      alert("手机号码不能为空！");
      return;
    }
    if (password.value == "") {
      alert("密码不能为空！");
      return;
    }
  
    //登录请求
    axios
      .post(
        "UserController/getUserByIdByPass",
        qs.stringify({
          userId: userId.value,
          password: password.value,
        })
      )
      .then((response) => {
        let user = response.data;
        if (user == null) {
          alert("用户名或密码不正确！");
        } else {
          //sessionstorage有容量限制，为了防止数据溢出，所以不将userImg数据放入session中
          user.userImg = "";
          setSessionStorage("user", user);
          router.go(-1);
        }
      })
      .catch((error) => {
        console.error(error);
      });
  };
  
  const register = () => {
    router.push({ path: "register" });
  };
  </script>
  
  <style scoped>
  /****************** 总容器 ******************/
  .wrapper {
    width: 100%;
    height: 100%;
  }
  
  /****************** header部分 ******************/
  .wrapper header {
    width: 100%;
    height: 12vw;
    background-color: #0097ff;
    color: #fff;
    font-size: 4.8vw;
  
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
  
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  /****************** 表单部分 ******************/
  .wrapper .form-box {
    width: 100%;
    margin-top: 12vw;
  }
  
  .wrapper .form-box li {
    box-sizing: border-box;
    padding: 4vw 3vw 0 3vw;
    display: flex;
    align-items: center;
  }
  
  .wrapper .form-box li .title {
    flex: 0 0 18vw;
    font-size: 3vw;
    font-weight: 700;
    color: #666;
  }
  
  .wrapper .form-box li .content {
    flex: 1;
  }
  
  .wrapper .form-box li .content input {
    border: none;
    outline: none;
    width: 100%;
    height: 4vw;
    font-size: 3vw;
  }
  
  .wrapper .button-login {
    width: 100%;
    box-sizing: border-box;
    padding: 4vw 3vw 0 3vw;
  }
  
  .wrapper .button-login button {
    width: 100%;
    height: 10vw;
    font-size: 3.8vw;
    font-weight: 700;
    color: #fff;
    background-color: #38ca73;
    border-radius: 4px;
  
    border: none;
    outline: none;
  }
  
  .wrapper .button-register {
    width: 100%;
    box-sizing: border-box;
    padding: 4vw 3vw 0 3vw;
  }
  
  .wrapper .button-register button {
    width: 100%;
    height: 10vw;
    font-size: 3.8vw;
    font-weight: 700;
    /*与上面登陆按钮不同的只有颜色、背景色、边框不同*/
    color: #666;
    background-color: #eee;
    border: solid 1px #ddd;
    border-radius: 4px;
  
    border: none;
    outline: none;
  }
  
  /****************** 底部菜单部分 ******************/
  .wrapper .footer {
    width: 100%;
    height: 14vw;
    border-top: solid 1px #ddd;
    background-color: #fff;
  
    position: fixed;
    left: 0;
    bottom: 0;
  
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
  
  .wrapper .footer li {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  
    color: #999;
    user-select: none;
    cursor: pointer;
  }
  
  .wrapper .footer li p {
    font-size: 2.8vw;
  }
  
  .wrapper .footer li i {
    font-size: 5vw;
  }
  </style>